Filter cartridge for cigarette holders



March 17, 1964 J. JANY FILTER CARTRIDGE FOR CIGARETTE HOLDERS IN VEN TOR.

IIIIII lllll u "ii Filed March 4, 1960 .lln-lllllll'lllllll United States Patent 3,125,100 FILTER CARTRIDGE FOR QIGARETTE HOLDERS .los Jany, Av. Angelica 2.860, Sao Paulo, Brazil Filed Mar. 4, 1966, Ser. No. 12,82 Claims priority, application Brazil Jan. 7, 1960 3 Claims. (Cl. 131208) It has been stated in International Medical Congresses that tobacco smoke contains injurious agents such as tar and nicotine. To eliminate these injurious agents to human health, some cigarettes have filter tips made of paper, cellulose and silicon crystals.

However, the researches, statistics and various other sources of information presented in the above mentioned Congresses proved that some of these filters may be inefficient, eliminating only a small percentage of the gases and of the nicotine contained in the smoke of the ciragettes.

The object of the present invention is to provide a solution of this serious problem, through the use of a liquidchemical filter which materially reduces the above noted injurious agents.

The most important feature of this invention is thus the liquid-chemical filter, details of which shall be set forth in the following description.

The enclosed drawings illustrate the invention, being:

FIG. 1, a longitudinal section of a cigarette holder and a filter cartridge therefor;

FIG. 2, a longitudinal section through the disassembled parts of the holder;

FIG. 3, an elevational view of the front lid of the cartridge employed in the holder shown in FIGS. 1 and 2;

FIG. 4, an elevational view of the back lid of the cartridge employed in the holder shown in FIGS. 1 and 2.

The invention consists of a dismountable cigarette holder, consisting of a cartridge 1 containing the liquidchemical filter 2. This capsule 1 consists of a transparent tube of plastic material 3, of a lower smaller tube 4 also of plastic material for the entrance of the smoke, of an upper smaller tube of plastic material for the outflow of the filtered smoke; the holes of these tubes are closed on one end by a plug which contains several capillary channels 6.

The capillary tubes 6, which are inserted in a plug at one end of each tube, serve as a valve system, in that they allow smoke to pass therethrough. The capillary tubes 6, located in the lower tube restrict the flow of chemical fluid from the interior of the transparent tube 3, to the cigarette holder end 7, which has a long small tube 9, fitted thereto, the small tube 9, being inserted in the tube 5, the inner end of the tube 9 being located near the capillary tubes 6. The capillary tubes fitted in the upper tube 5, restrict the flow of chemical fluid from the interior of the tube 3, to the upper tube 9, and the passages leading therefrom through the mouthpiece 8. The support end of the upper small tube 9 is supported by a first lid 11 and is attached to the mouthpiece, this lid being formed of a resilient plastic material. The lower small tube 9, is supported by a similar lid 11, which is fixedly attached to the rear portion of the holder proper 7, the lid being formed of a resilient plastic material, in the same manner as the first lid.

The tubes are made from metallic material. The free end of each tube 9 terminates in a sharpened point 10, similar to a hypodermic needle, to facilitate the introduction thereof through the lids 11 into the smaller tubes 4 and 5 in the manner shown in FIG. 1. Accordingly, the lids 11 seal the cartridge against the loss of liquid before penetration by the tubes 9 and expose the capillary tubes 6 thereto. FIGS. 3 and 4 show such exposure after the tubes 9, etc., have been removed from the cartridge.

3,125,100 Patented Mar. 1 7., 1964 As illustrated at 2, the chemical filtering fluid may fill one half of the transparent tube 3-, thereby submerging tube 4. The filtering fluid may include sodium bicarbonate, glycerine, vegetable oils, etc.

In use, a cigarette is placed in the socket portion 7, a flame is applied to the free end thereof and the smoker draws smoke through the cigarette, the socket, the cartridge and the mouthpiece 8. In traversing the cartridge, smoke enters the cartridge through the lower tube 9 as seen in FIG. 1, to the interior of the tube 4. From the tube 4, smoke passes through capillary tubes 6 at the left end thereof as seen in FIG. 2 as Well as in FIG. 1, and enters the filtering fluid 2. Some of the smoke rises above the level of the fluid and enters the tube 5 through the capillary tubes 6 at the free end thereof. The tube 9 at the upper left end portion of the cartridge then serves as a conduit so that smoke may be drawn from the cartridge to the smoke duct in the mouthpiece 8. During its passage through the cartridge the smoke is cooled and cleansed. Since the tube 3 is transparent, the condition of the filtering fluid will be visable at all times.

When it is decided that the cartridge has served its purpose, it may be replaced as indicated above, in a rapid and simple fashion.

Having described the invention, what I claim is:

1. A filter cartridge adapted to be used in a holder including a mouthpiece and a cigarette holding part, said cartridge comprising a casing formed of transparent material and including end walls, each of said end walls having an aperture, said end wall disposed adjacent to said mouthpiece containing its aperture located in its upper portion and said end wall disposed adjacent to said cigarette holding part containing its aperture located in its lower portion, tubes having a diameter less than that of the end walls being fitted through the apertures therein and extending into the tubular casing for a distance which is greater than one half thereof, said tubes having free ends having plugs mounted therein, the longitudinal axes of said tubes being substantially parallel to one another, and spacedly located relative to one another, said plugs containing a plurality of capillary channels extending therethrough, and a chemical liquid occupying substantially one half the volume within said tubular portion.

2. A filter cartridge for tobacco smoke, comprising in combination, a tubular casing having first and second end walls having a pointed metal tube projecting inward therefrom, said tubular casing being formed of transparent material, said end walls of said tubular casing each containing an aperture, said end wall disposed adjacent the first end of said casing containing an aperture located in the upper portion of said end wall and said end wall disposed adjacent the second end of said casing containing an aperture in the lower portion of said end wall, smaller tubes fixed to extend inwardly of said casing from said end walls and fitted through the apertures in said end walls for a distance greater than one half the length of said tubular portion, solid plugs closing the inwardly disposed ends of said pointed tubes, the longitudinal axes of the smaller tubes being substantially parallel to, and spacedly offset relative to one another, said plugs containing a plurality of capillary channels extending therethrough, a chemical liquid occupying substantially one half the volume within said tubular casing, and elastic members closing the outwardly disposed ends of said smaller tubes, said elastic members being transfixed by said pointed metal tubes.

3. The combination according to claim 2 wherein said elastic members are elastic lids disposed over said end walls and a pair of end members fixed over said end walls securing said elastic. lids over said end walls between said end walls and. said end members, said end members each containing a second aperture disposed over the aperture in the end wall adjoining the corresponding end member, with a pointed metal tube pass- 5 ing through and fixedly attached to each elastic lid and passing through the apertures in adjacent end members and end walls.

References Cited in the file of this patent 10 UNITED STATES PATENTS Wartemann Jan. 18, 1916 Lackow et al. Jan. 2, 1940 Carlson Mar. 26, 1940 Zoulfakos June 25, 1940 Tarrant Oct. 14, 1941 Howard Oct. 25, 1955 Gerard et a1 June 25, 1957 Kummli Apr. 15, 1958 Watkins Oct. 7, 195 8 FOREIGN PATENTS Great Britain 1872 Great Britain 19 13 Great Britain 1914 France Sept. 16, 1953 

2. A FILTER CARTRIDE FOR TOBACCO SMOKE, COMPRISIN IN COMBINATION, A TUBULAR CASING HAVING FIRST AND SECOND END WALLS HAVING A POINTED METAL TUBE PROJECTING INWARD THEREFROM, SAID TUBULAR CASING BEING FORMED OF TRANSPARENT MATERIAL, SAID END WALLS OF SAID TUBULAR CASING EACH CONTAINING AN APERTURE, SAID END WALL DISPOSED ADJACENT THE FIRST END OF SAID CASING CONTAINING AN APERTURE LOCATED IN THE UPPER PORTION OF SAID END WALL AND SAID END WALL DISPOSED ADJACENT THE SECOND END OF SAID CASING CONTAINER AN APERTURE IN THE LOWER PORTION OF SAID SAID END WALL, SMALLER TUBES FIXED TO EXTEND INWARDLY OF SAID CASING FROM SAID END WALLS AND FITTED THROUGH THE APERTURES IN SAID ENDS WALLS FOR A DISTANCE GREATER THAN ONE HALF THE LENGTH OF SAID TUBULAR PORTION, SOLID PLUGS CLOSING THE INWARDLY DISPOSED ENDS OF SAID POINTED TUBES, THE LONGITUDINAL AXES OF THE SMALLER TUBES BEING SUBSTANTIALLY PARALLEL TO, AND SPACEDLY OFFSET RELATIVE TO ONE ANOTHER, SAID PLUGS CONTAINING A PLURALITY OF CAPILLARY CHANNELS EXTENDING THERETHROUGH, A CHEMICAL LIQUID OCCUPYING SUBSTANTIALLY ONE HALF OF THE VOLUME WITHIN SAID TUBULAR CASING, AND ELASTIC MEMBERS CLOSING THE OUTWARDLY DISPOSED ENDS OF SAID SMALLER TUBES, SAID ELASTIC MEMBERS BEING TRANSFIXED BY SAID POINT METAL TUBES. 